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Ultegra crank to FSA compact(5 posts)

Ultegra crank to FSA compactrm6rider
Sep 10, 2003 6:21 PM
I'm thinking about switching. Do I need to change like the front derailleur or just the crank? I have a full ultegra on my 2002 Trek 2200. Thanks.
re: Ultegra crank to FSA compactglia
Sep 10, 2003 7:56 PM
Great choice! I made this upgrade a few weeks ago and I love it. You'll climb much better. I left my rear cog unchanged (12/25). It is a very simple change. Unscrew the selfextracting crankbolts and mount the new crankarms. You will need to simply drop the fron derailure about a quarter of an inch. Also, because the wheels are smaller, you need to shorten your chain by several links. In fact it saves you 30g in chain weight! I suggest to invest an extra $49 and get a Dura-Ace bottom bracket while you are at it. That will save you another 50g for a total weight savings of close to 300g! You can get this crank at wisecyclebuys.com for $299.
re: How's the shifting with 50/34??CurtSD
Sep 11, 2003 10:39 AM
I've heard chainring combinations like 50/34 and 52/36 suggested for these cranks, but a 16 tooth difference seems like a lot - how is the shifting?
re: Ultegra crank to FSA compacttirider
Sep 10, 2003 8:03 PM
If you buy a FSA compact in Octalink, you'll be able to use the same BB. You can use the same front derailleur (I'm assuming you have a Ultegra double) but you'll have to drop it down a bit on the seat tube to compensate for the smaller chainrings.
re: Ultegra crank to FSA compactlithiapark
Sep 11, 2003 7:09 PM
I put an FSA Carbon Pro Compact Drive on a new bike. Used an old Ultegra standard FD, Ultegra shifters. Shifts just fine. Tried an Ultegra Triple FD, rubbed on the cage. I got the ISIS splined version and an FSA Platinum Pro Ti BB. I've used that BB with good result on MTBs. Never had one fail. Very stiff, but I'm only 155#. Cassette is DA 12/27. The low gear, 34-27, is just about exactly what the 30-25 is on a triple setup I have. I don't mind the gaps in the cogset, I'm used to MTB 11/34 cassettes. The FSA crankset weighs the same as a Record Carbon double, and costs half as much. If I find something better to put on my road bike, I'll take the compact drive, put on a 46 or 48 tooth big chain ring on the 'cross bike I've always wanted to build up.